When vanishing point perspective was first discovered in the early Renaissance, artists were astounded by how the draftsman tool was able to transform a flat, 2D space (that until then always looked like a flat, 2D space without perspective) into a believable 3D image. We've been using vanishing point perspective ever since, and architects would die without it.
To learn how to draw just like Da Vinci and Michelangelo did, check out this drawing tutorial. Only rather than painting the Sistine Chapel you'll be drawing in your sketchbook.
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